Roberts Z ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=63bc113... ) *updated* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiZGNkMDkzNTYy... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-16123?atlOrigin=eyJpIjoiZGNkMD... ) HHH-16123 ( https://hibernate.atlassian.net/browse/HHH-16123?atlOrigin=eyJpIjoiZGNkMD... ) Invalid generated MySQL query when accesing join from a treated path ( https://hibernate.atlassian.net/browse/HHH-16123?atlOrigin=eyJpIjoiZGNkMD... ) Change By: Roberts Z ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=63bc113... ) When having the following model structure: (see the attachment for a minimal Spring project as a full reproducer) {code:java}@Entity @Inheritance(strategy = InheritanceType.TABLE_PER_CLASS) public abstract class Publication extends BaseEntity { @Column(name = "title") private String title; } @Entity public abstract class Book extends Publication { @OneToMany(mappedBy = "book", cascade = CascadeType.REMOVE) private List<AuthorParticipation> participations = new ArrayList<>(); } @Entity @Table public class LongBook extends Book {} @Entity @Table public class ShortBook extends Book {} @Entity @Table public class Author extends BaseEntity { @Column(name = "name") private String name; } @Entity @Table public class AuthorParticipation extends BaseEntity { @ManyToOne @JoinColumn(name = "id_author", nullable = false) private Author author; @ManyToOne @JoinColumn(name = "id_book", nullable = false) private Book book; }{code} And when querying entities by the parent class (in this example: {{Publication}}) with the Criteria API and treating the root path to another abstract class, when accessing a join, for example: {code:java}publicationRepository.findAll( (root, query, criteriaBuilder) -> { Root<Book> asBook = criteriaBuilder.treat(root, Book.class); Join<Book, AuthorParticipation> joinAuthors = asBook.join("participations"); return criteriaBuilder.equal( joinAuthors .get("author") .get("name"), "John Doe"); });{code} An invalid SQL statement is generated: {code:sql}/* <criteria> */ select p1_0.id, p1_0.clazz_, p1_0.title from (  ) p1_0 join `demo_application$author_participation` p2_0 on p1_0.id=p2_0.id_book join `demo_application$author` a1_0 on a1_0.id=p2_0.id_author where a1_0.name=?{code} Traceback: {noformat}org.hibernate.exception.SQLGrammarException: JDBC exception executing SQL [/* <criteria> */ select p1_0.id,p1_0.clazz_,p1_0.title from (  ) p1_0 join `demo_application$author_participation` p2_0 on p1_0.id=p2_0.id_book join `demo_application$author` a1_0 on a1_0.id=p2_0.id_author where a1_0.name=?] at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:64) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:56) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:109) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:95) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.sql.results.jdbc.internal.DeferredResultSetAccess.executeQuery(DeferredResultSetAccess.java:253) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.sql.results.jdbc.internal.DeferredResultSetAccess.getResultSet(DeferredResultSetAccess.java:146) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.sql.results.jdbc.internal.JdbcValuesResultSetImpl.advanceNext(JdbcValuesResultSetImpl.java:205) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.sql.results.jdbc.internal.JdbcValuesResultSetImpl.processNext(JdbcValuesResultSetImpl.java:85) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.sql.results.jdbc.internal.AbstractJdbcValues.next(AbstractJdbcValues.java:29) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.sql.results.internal.RowProcessingStateStandardImpl.next(RowProcessingStateStandardImpl.java:88) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.sql.results.spi.ListResultsConsumer.consume(ListResultsConsumer.java:177) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.sql.results.spi.ListResultsConsumer.consume(ListResultsConsumer.java:33) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.sql.exec.internal.JdbcSelectExecutorStandardImpl.doExecuteQuery(JdbcSelectExecutorStandardImpl.java:443) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.sql.exec.internal.JdbcSelectExecutorStandardImpl.executeQuery(JdbcSelectExecutorStandardImpl.java:166) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.sql.exec.internal.JdbcSelectExecutorStandardImpl.list(JdbcSelectExecutorStandardImpl.java:91) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.sql.exec.spi.JdbcSelectExecutor.list(JdbcSelectExecutor.java:31) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.query.sqm.internal.ConcreteSqmSelectQueryPlan.lambda$new$0(ConcreteSqmSelectQueryPlan.java:113) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.query.sqm.internal.ConcreteSqmSelectQueryPlan.withCacheableSqmInterpretation(ConcreteSqmSelectQueryPlan.java:335) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.query.sqm.internal.ConcreteSqmSelectQueryPlan.performList(ConcreteSqmSelectQueryPlan.java:276) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.query.sqm.internal.QuerySqmImpl.doList(QuerySqmImpl.java:571) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.query.spi.AbstractSelectionQuery.list(AbstractSelectionQuery.java:363) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.query.sqm.internal.QuerySqmImpl.list(QuerySqmImpl.java:1073) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.query.Query.getResultList(Query.java:94) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.springframework.data.jpa.repository.support.SimpleJpaRepository.findAll(SimpleJpaRepository.java:463) ~[spring-data-jpa-3.0.1.jar:3.0.1]{noformat} ( https://hibernate.atlassian.net/browse/HHH-16123#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16123#add-comment?atlOrigin=ey... ) Get Jira notifications on your phone! 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